Experimental dataset for system identification of a dual-phase gas–liquid transmembrane pressure system
Description
The data presented in this article describe the dynamic input–output responses of a dual-phase gas–liquid transmembrane pressure system operating under different water flow rates and actuator excitations. The dataset is acquired from a laboratory-scale experimental platform consisting of interconnected CO₂ gas and water channels separated by a porous polytetrafluoroethylene (PTFE) membrane module. The gas and water control valves are used to regulate the gas and liquid flow paths, while the liquid channel is supplied by a controlled water pump. Gas inlet pressure and water outlet pressure are measured using industrial pressure transducers and synchronously acquired by a Siemens S7-1200 programmable logic controller at a sampling frequency of 1 Hz.